27.11.2014 Views

Lecture 3: Multiple Regression Model - McCombs School of Business

Lecture 3: Multiple Regression Model - McCombs School of Business

Lecture 3: Multiple Regression Model - McCombs School of Business

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

The Data and Least Squares<br />

Y = β 0 + β 1 X 1 . . . + β d X d + ε, ε ∼ N(0, σ 2 )<br />

How do we estimate the MLR model parameters?<br />

The principle <strong>of</strong> Least Squares is exactly the same as before:<br />

◮ Define the fitted values<br />

◮ Find the best fitting plane by minimizing the sum <strong>of</strong> squared<br />

residuals.<br />

8

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!